[sdiy] Project Thomas Orgasynth

[harry bissell]

Two things dude...

One... you do not rotate the blacklight with the Leslie...
that is what the mirrored ball is used for.

Two (and serious)... Styrofoam was the material of choice
for a great many Leslie rotors (and I was as surprised as
you when I first found that out).

It has very good sound reflecting / absorbing capacity, can
be molded accurately, and has very low moving mass so it
can start and stop with much less power

H^) harry


R. D. Davis wrote:
> Quothe Ken Stone, from writings of Sat, May 13, 2006 at 03:13:37PM +1000:
>   
>> All a Thomas color glow is, is a flourescent tube positioned below each 
>> keyboard, with the plastic thinner under each key, with the letter of each
>> key molded in.
>>     
>   
> Heh, I can't wait to see what condition the fluorescent tubes are in,
> given the condition of everything else in that organ... let's see if I
> can remove them without them breaking.
>   
>   
>> Not very exciting.
>>     
>
> No, but I guessed it was going to be something dull and boring like
> that, having removed the ballasts for two fluorescent lights.  Ah  
> well... it was nice to at least think about the possibility of a   
> multi-colored psychadelic keyboard with keys lighting up in various
> patterns... and black light for the black keys... looks like I'll just
> have to purchase a black light to hang over the Orgasynth... maybe
> some sort of rotating black light to go with the sound from the
> Leslie.
>
> A bigger disappointment was the Leslie.  The rotating horn is made
> of... styrofoam!  The Leslie's speaker needs to be replaced with a
> better quality speaker as well, but I wonder if the styrofoam horn can
> withstand something like a speaker capable of handling much more
> power, with a higher and lower frequency response as well, like a 6"
> coaxial speaker.  Then there's that thick cloth-like sound-absorbent
> material, many layers of it, behind the Leslie; anyone know what
> that's made of?  It's disintegrating.  Not some sort of asbestos, is
> it?  There was a piece of paper on the back of the Leslie that
> appeared to give a good bit of information about it, but most of it
> was torn up and is missing.
>
> Robert
>
>